Heel pain most often comes from plantar fasciitis, a condition where the thick band of tissue running along the bottom of your foot becomes irritated and inflamed. But several other conditions can produce similar pain, and where exactly your heel hurts, when it hurts, and how it feels all point toward different causes.
Plantar Fasciitis: The Most Common Cause
The plantar fascia is a strong, bow-shaped ligament that connects your heel bone to the base of your toes. It supports your arch and absorbs shock every time your foot hits the ground. When that tissue gets overloaded through repetitive stress, small tears develop and trigger inflammation and pain right at the bottom of the heel.
The signature symptom is stabbing pain with your very first steps in the morning. While you sleep, the tissue tightens and shortens because your foot is relaxed and the fascia isn’t being stretched. When you stand up, those first steps force the shortened tissue to stretch suddenly, producing that sharp jolt. The pain typically fades after a few minutes of walking as the tissue loosens, then returns after long periods of standing or when you get up from sitting.
Several things increase your risk. Carrying extra body weight puts more load on the fascia with every step. Jobs that keep you on your feet for hours, running on hard surfaces, and wearing flat or unsupportive shoes all contribute. Tight calf muscles are a major factor because they limit how far your ankle can flex, which forces the plantar fascia to absorb more strain. Most people recover within several months using conservative treatment: icing, calf and foot stretches, supportive shoes or inserts, and cutting back on the activities that triggered it.
Achilles Tendon Problems
Your Achilles tendon connects the calf muscles to the back of the heel bone. When it becomes inflamed or starts to break down, you’ll feel pain at the back of the heel rather than underneath it. There are two distinct patterns depending on which part of the tendon is affected.
Insertional Achilles tendinitis targets the lowest portion of the tendon, right where it attaches to the heel bone. This is common in long-distance runners but can also develop in people who aren’t particularly active. Noninsertional tendinitis affects the middle of the tendon, higher up from the heel. In this type, the tendon fibers begin to break down, swell, and thicken. It tends to show up in more active people. Both types worsen with activity and often feel stiff in the morning, though the pain is distinctly at the back of the heel or just above it rather than on the bottom.
Heel Spurs: Less Painful Than You’d Think
A heel spur is a bony calcium deposit that forms on the underside of the heel bone. They show up frequently on X-rays, and many people assume they’re the source of their pain. But most people who have bone spurs on their heels don’t actually have heel pain. The spur itself isn’t usually the problem. It’s the soft tissue irritation around it, often plantar fasciitis, that produces the symptoms. If your doctor spots a heel spur on imaging, treatment still focuses on the inflamed tissue rather than the spur itself.
How Your Foot Shape Plays a Role
The way your foot rolls when you walk or run can set you up for heel problems. Overpronation, where your foot rolls too far inward with each step, is common in people with flat feet. It shifts extra weight to the inside of the foot, creating instability and strain on the plantar fascia and surrounding structures. Supination, the opposite pattern where your foot rolls outward, is more common with high arches and concentrates impact forces along the outer edge of the foot.
Both patterns increase your risk of developing plantar fasciitis and other overuse injuries. If you notice uneven wear on the soles of your shoes (worn down on the inner edge for overpronation, outer edge for supination), your gait mechanics may be contributing to your heel pain. Motion-control shoes or custom orthotics can help correct the imbalance.
Nerve Compression in the Heel
Tarsal tunnel syndrome happens when a nerve running along the inside of the ankle gets compressed as it passes through a narrow space near the ankle bone. The symptoms feel different from plantar fasciitis. Instead of sharp, localized pain, you’ll notice burning, tingling, numbness, or a pins-and-needles sensation across the bottom of the foot and toes. In some cases, the compression can lead to muscle weakness in the foot. The tingling may come and go at first but can become persistent if the nerve stays compressed. This condition is sometimes misdiagnosed as plantar fasciitis because both affect the bottom of the foot, but the burning and numbness are key distinguishing features.
Heel Pain in Kids and Teens
Children and adolescents get heel pain for a different reason than adults. Sever’s disease (calcaneal apophysitis) occurs when the growth plate in a child’s heel becomes injured and inflamed. The heel is one of the first body parts to reach full size during a growth spurt, and the muscles and tendons can’t keep pace with the rapidly growing bone. The resulting tightness puts stress directly on the heel’s growth plate.
This typically hits girls between ages 8 and 10 and boys between 10 and 12, especially those who are active in sports. The pain worsens with running and jumping and improves with rest. It’s not dangerous and resolves once the growth plate fully matures and hardens, but activity modification and stretching help manage the discomfort in the meantime.
Stress Fractures and Bone Bruises
Repetitive impact can cause tiny cracks in the heel bone itself. Stress fractures produce a deep, aching pain that worsens with weight-bearing activity and doesn’t follow the classic “worst in the morning, better after walking” pattern of plantar fasciitis. The pain tends to build gradually over days or weeks and gets worse, not better, with continued activity. Squeezing the heel from both sides often reproduces the pain. Runners, military recruits, and anyone who ramps up physical activity too quickly are at higher risk, as are people with low bone density.
A heel bone bruise from a hard landing, stepping on a rock, or walking barefoot on a hard surface produces similar deep pain but typically has a more sudden onset tied to a specific event.
Signs That Need Prompt Attention
Most heel pain responds to rest, ice, stretching, and better footwear within a few weeks. But certain symptoms warrant faster evaluation. Severe pain and swelling near the heel immediately after an injury could signal a fracture or tendon rupture. If you can’t bend your foot downward, rise onto your toes, or walk normally, something structural may be damaged. Heel pain accompanied by fever and numbness or tingling suggests a possible infection or significant nerve involvement.
If your heel pain persists for more than a few weeks despite consistent home treatment, or if you have pain even when you’re not standing or walking, it’s worth getting a professional assessment to identify the specific cause and adjust your approach.